Abstract
We report the growth and photoluminescence characterization of GaN grown on different substrates and under different growth conditions using metalorganic chemical vapor deposition. The deep-level yellow luminescence centered at around 2.2eV is attributed to native defect, most possibly the gallium vacancy. The yellow luminescence can be substantially reduced By growing GaN under Ga-rich condition or doping GaN with Ge or Mg.
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Zhang, X., Kung, P., Walker, D. et al. Growth of GaN without Yellow Luminescence. MRS Online Proceedings Library 395, 625–629 (1995). https://doi.org/10.1557/PROC-395-625
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DOI: https://doi.org/10.1557/PROC-395-625